FLOW FIELD AND CONCENTRATION FIELD OF ALLOYING ADDITION IN CLAD STEEL CONTINUOUS CASTING MOLD USING LONG AND SHORT NOZZLES
Received date: 2010-01-12
Revised date: 2010-04-24
Online published: 2010-06-11
Supported by
Supported by National Natural Science Foundation of China (No.50774111)
In order to mass-produce the clad steel of stainless/carbon steel at low cost, the new clad steel slab continuous casting process, which uses the combination of long and short submerged entry nozzles and electromagnetic brake in the same mold, was developed. The flow field and concentration field of alloying elements in a clad steel continuous casting mold were studied by combination of experiment and mathematical model. The black sesames dipped in water were used to visualize the flow patterns in the mold. The low Reynolds number turbulent model was used to calculate turbulent viscosity, and the fictitious solidified shell was used to simplify the solidification calculation. The effect of clapboard and electromagnetic brake on the flow field was compared. By comparing experiment with systematical numerical analysis, the reliability and reasonableness of the model proposed were verified. Flow structure and concentration characteristics of alloying element in the mold were obtained, and parameteric studies on the nozzle structure and magnetic flux density were also conducted.
LI Bao-Kuan , DAI Feng-Hu , ZI Feng-Sheng , YANG Ran . FLOW FIELD AND CONCENTRATION FIELD OF ALLOYING ADDITION IN CLAD STEEL CONTINUOUS CASTING MOLD USING LONG AND SHORT NOZZLES[J]. Acta Metall Sin, 2010 , 46(6) : 736 -742 . DOI: 10.3724/SP.J.1037.2010.00025
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